Gorman Robb (hookrice8)

Pollution haven hypothesis (PHH) has been investigated extensively in the existing literature due to global environmental issues such as global warming and climate change. However, there is still no consensus on whether this hypothesis is valid. Therefore, the aim of this study is to examine the validity of the PHH in ASEAN-5 countries (Indonesia, Malaysia, Philippines, Singapore, and Thailand) covering the period of 1981-2014. It is utilized the up-to-date panel data techniques taking cross-sectional dependence and slope heterogeneity into account to test the relationship. According to the results of CCEMG and AMG estimators, the validity of the PHH is confirmed in ASEAN-5 countries. see more The increase in foreign direct investments (FDI) increases environmental degradation in these countries. Our additional findings show that the environmental Kuznets curve (EKC) hypothesis (EKC) is also valid in these countries. There is an inverted U shape between economic growth and CO2 emissions. In addition, energy consumption exacerbates CO2 emissions.Rivers support life of Indian population but water pollution threatens human health. There is no consensus data for water quality (WQ) of rivers in India including River Ganga. For robust stakeholder participation and community involvement and governance, a consolidation of WQ parameters for River Ganga from different data sources is essentially needed. The priority to combat environmental, economic, and social dislocations due to river pollution also necessitates WQ data convergence, its availability in public domain for policy makers, citizens, researchers, etc, and mapping with respect to the flowing river. Lack of real-time data limits civic involvement in river management. This paper is a novel attempt to consolidate the WQ data available in literature for River Ganga at Varanasi during 1992-2016. Results indicate water of River Ganga to have high coliform and BOD levels due to direct discharge of sewage waste from Varuna and that from Varanasi city. Categorization of ghats based on WQ parameters reveal pollution status of ghats to vary from low to highly polluted (coliform data excluded as it changes the category of all the ghats to highly polluted). More urban population with lack of readiness of authorities to follow the law appear to be major contributors towards failure of river management strategies. The consolidated information mapped with demographic data can be used as data management tools for sustenance of River Ganga. A need for change in policy framework and publicizing the real-time data seem key solutions for improving water quality of River Ganga at Varanasi.Hydrogen generation from food waste anaerobic dark fermentation is identified as a promising strategy for resource recovery. In this work, an innovative strategy of using potassium ferrate (PF), a strong oxidant, to promote anaerobic dark fermentation of food waste to produce hydrogen has been reported. The experimental results revealed that PF enhanced the hydrogen production from food waste, the maximal hydrogen yield was 173.5 mL/g, and the optimal PF dosage was 0.4 g/g total suspended solids. PF shortened the lag phase for hydrogen generation from 120 to 96 h. Mechanisms investigation revealed that PF accelerated the disintegration of organic compounds and increased the soluble organic matter in the liquid phase. The strong oxidation of PF inhibited the processes of hydrolysis, acidification, acetogenesis, homoacetogenesis, and methanogenesis by using synthetic wastewater in the fermentation process. The inhibition of PF on these processes was further verified by the enzyme activity analysis. Economic analysis indicated that 0.1 g/g PF was the optimal dosage. PF treatment is a promising strategy to enhance the production of hydrogen from food waste dark fermentation.Trace elements play an indispensable role in stabilizing the performance of anaerobic co-digestion (Co-AD) of food waste